You'll be grateful for those holes when your heater core springs a leak...
As we are talking about these floor pan holes. Do all 240z have the same size holes. I’ve seen a lot of cars over the past few years (21 owned by me) and have come across a few that have all the same size small hole as oppose to a couple of them being the 45mm ones. Even on car that appear to have had no welding.
.......... I’ve seen a lot of cars over the past few years (21 owned by me)....................